﻿FLOWERING PLANTS OF NANTUCKET 339 



" Flowers, late-August to October. Fruit, late-September to 

 October, Dry sandy soil, rare or locally frequent in the Coastal 

 Plain, Cape Cod region of Massachusetts, Nantucket, Martha's 

 Vineyard and Long Island, westward as far as the Hempstead 

 Plains; very occasional inland (above the Fall-Line) in eastern 

 Massachusetts, Rhode Island and Connecticut. 



" Differs iromAgalinis decemloha (Greene) Pennell, which occurs 

 from Lancaster County, Pennsylvania, to northern Alabama, by 

 its lower habit, pedicels mostly 1-2 (not 2-3) times the length of 

 the bracts, calyx-tube campanulate (not hemispheric), firmer in 

 texture, f-f (not |-|) the length of the capsule, calyx-lobes 

 0.5-1 mm. (not 0.05-0.2 mm.) long, not or scarcely callose, and its 

 seeds smaller, 0.4-0.6 mm. (not 0.6-0.8 mm.) long, strongly (not 

 obscurely) reticulated. 



" Differs from Agalinis Skinneriana (Wood) Britton, which 

 occurs from the St. Clair River, southwestern Ontario to eastern 

 Kansas, by its less conspicuously striate-angled stem, angles gla- 

 brous or nearly so (not scabrellous-roughened), its corolla-lobes 

 more or less emarginate (not truncate) , stigma 1-1.2 mm. (not 

 1.5-2 mm.) long, capsule 3.8-4.2 mm. (not 4-5 mm.) long, and seeds 

 smaller, 0.4-0.6 mm. (not 0.7-0.9 mm.) long." Francis W. Pennell. 



A characteristic autumn-flowering plant of the dry plains in 

 the southern half of the island; on the north side observed only 

 in Pocomo. In full flower September 2, 1904, continuing in 

 bloom through the month. Common also on the south side of 

 Martha's Vineyard and on Chappaquiddick Island. Well grown 

 plants become much branched and 3 dm. in height; diminutive ex- 

 amples may be not over 2 cm. high with only a terminal flower. 



Comparison of Nantucket specimens collected in 1904 with 

 Wood's type of Gerardia Skinneriana in the herbarium of Columbia 

 University, to which species the New England plant had long 

 been referred, showed that they were not at all the same; and 

 when, through the kindness of Professor Greene, I received speci- 

 mens of his then recently described Gerardia decemloba, from 

 \\"ashington, that more nearly related plant was readily seen not 

 to be identical. Dr. Pennell 's studies in this group have brought 

 him quite independently to the same conclusion, and have shown 

 further that our eastern plant, and A. decemloba as well, are 



